Leslie Sanford - Professional Profile

Summary

Aside from dabbling in BASIC on his old Atari 1040ST years ago, Leslie's programming experience didn't really begin until he discovered the Internet in the late 90s. There he found a treasure trove of information about two of his favorite interests: MIDI and sound synthesis.

After spending a good deal of time calculating formulas he found on the Internet for creating new sounds by hand, he decided that an easier way would be to program the computer to do the work for him. This led him to learn C. He discovered that beyond using programming as a tool for synthesizing sound, he loved programming in and of itself.

Eventually he taught himself C++ and C#, and along the way he immersed himself in the ideas of object oriented programming. Like many of us, he gotten bitten by the design patterns bug and a copy of GOF is never far from his hands.

Now his primary interest is in creating a complete MIDI toolkit using the C# language. He hopes to create something that will become an indispensable tool for those wanting to write MIDI applications for the .NET framework.

Besides programming, his other interests are photography and playing his Les Paul guitars.

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This is a post[^] I made to the Lounge. I wanted to give a basic overview of the concept of messaging in object oriented programming. Specifically, I wanted to show how anonymous methods help facilitate passing one message from one object to another in a decoupled way. This is similar to my "Anonymous Methods as Glue"[^] entry.

The post got a little long; I really enjoy talking about these concepts. So I thought I would repost it here:

From a theoretical point of view, invoking a method on an object can be considered sending it a message:

obj2 can send messages directly to obj1 and does so through the ISink interface.

The problem with this approach is that we have to straightjacket objects into the ISink interface in order to allow our messaging system to work. We can use .NET events to decouple objects even further and use anonymous methods as a means of facilitating communication. Take your typical .NET class that raises an event:

The objects are completely decoupled. The anonymous method provides a way for events raised by one object to be delegated to another object. Things can get fancier if our anonymous method adapts the event raised by one object by transforming the message into something the receiving object can understand.

From my point of view, since taking up C#, messaging has become a ubiquitous to my programming. And I think it's improved as a result.